It would be interesting to see how the results compare to Wordtracker URL Trends : Use URL Trends to find out how many sites are linked to your site as well as how many sites you link to. Yahoo CPC ROI tool : Calculate the ROI from your cost per clicks vs. sales generated. Survey Tools Sample Size Calculator : Tells you how many survey respondents you need to generate a meaningful results. Larry Chase at Web Digest for Marketers is an amazing source for marketers looking for tools to assist in email marketing, search marketing, surveys - you name it! Chad H.